EP1499510B2 - Wishbone - Google Patents

Wishbone Download PDF

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Publication number
EP1499510B2
EP1499510B2 EP03709607A EP03709607A EP1499510B2 EP 1499510 B2 EP1499510 B2 EP 1499510B2 EP 03709607 A EP03709607 A EP 03709607A EP 03709607 A EP03709607 A EP 03709607A EP 1499510 B2 EP1499510 B2 EP 1499510B2
Authority
EP
European Patent Office
Prior art keywords
joint housing
rubber
wishbone
metal bearing
axle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP03709607A
Other languages
German (de)
French (fr)
Other versions
EP1499510A1 (en
EP1499510B1 (en
Inventor
Sören KNOPP
Holger Bublies
Reinhard Buhl
Uwe Cossmann
Ralf Kunze
Reinhard Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Lemfoerder GmbH
Original Assignee
ZF Lemfoerder GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
Priority to DE10219708 priority Critical
Priority to DE10219708A priority patent/DE10219708A1/en
Application filed by ZF Lemfoerder GmbH filed Critical ZF Lemfoerder GmbH
Priority to PCT/DE2003/000418 priority patent/WO2003093039A1/en
Publication of EP1499510A1 publication Critical patent/EP1499510A1/en
Publication of EP1499510B1 publication Critical patent/EP1499510B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29224998&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1499510(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP1499510B2 publication Critical patent/EP1499510B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/393Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type with spherical or conical sleeves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/001Suspension arms, e.g. constructional features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/005Ball joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/30Rigid axle suspensions
    • B60G2200/314Rigid axle suspensions with longitudinally arranged arms articulated on the axle
    • B60G2200/315Rigid axle suspensions with longitudinally arranged arms articulated on the axle at least one of the arms having an A or V shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/14Mounting of suspension arms
    • B60G2204/143Mounting of suspension arms on the vehicle body or chassis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/14Mounting of suspension arms
    • B60G2204/148Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416Ball or spherical joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10Constructional features of arms
    • B60G2206/124Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/90Maintenance
    • B60G2206/91Assembly procedures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/01Parts of vehicles in general
    • F16C2326/05Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32606Pivoted
    • Y10T403/32631Universal ball and socket
    • Y10T403/32737Universal ball and socket including liner, shim, or discrete seat

Abstract

A wishbone (1) is disclosed, for the suspension of axles on motor vehicles to give a jointed connection of a vehicle axle to a vehicle chassis, with two control arms (2, 3), connected together to the vehicle axle by means of a joint housing (6) for a rubber/metal bearing (11) to fix the wishbone (1), formed in common by the control arms (2, 3), whereby the rubber/metal bearing (11) comprises a swivel pin (12) with a ball surface and an elastomeric body (14) enclosing the swivel pin (12), at least in the region of the ball surface, housed in a recess (16) within the joint housing (6). Two press rings (17, 18) are arranged within the recess (16) in the joint housing (6) on the axial outer side of the elastomeric body (14), which may be displaced towards each other by means of a tensioning device, using interposed stop surfaces (22) on the joint housing (6) against the opposing outer sides of the press rings (17, 18). By means of said particular embodiment the rubber/metal bearing can be tensioned in both the axial and the radial direction, such as to permit larger forces to be transmitted due to the greater rigidity thus achieved.

Description

  • The invention relates to a wishbone for the axle suspension of motor vehicles for the articulated connection of a vehicle axle with the vehicle frame according to the generic features of claim 1.
  • Such known from the prior art wishbone are used in particular in commercial vehicles. Thus, for example, a guide arm for a vehicle wheel suspension is known, which consists of a two-part link body, wherein the two link body form a common receptacle for a rubber-metal bearing at one end, by means of which the guide arm can be fixed to a wheel or an axle. The opposite free ends serve the body-side fixing of the wishbone.
  • Such handlebars are usually formed as forgings or castings, which in particular in castings in the mold manufacturing in plan view, a relatively large area is claimed, although the actual mass of the two link arms is relatively low. In this respect, the division of the wishbone into two link arms, which can optionally be executed in the same way, offers a considerable cost advantage, which also has a positive effect on the design of the wishbone as a forging, since a significant reduction of the production steps can be brought about by the division into two parts.
  • A disadvantage of the disclosed in the above-mentioned document, however, is that the arranged within the common arm housing formed by the two joint arms rubber metal bearing by its design provides a bias of responsible for the elastic bearing elastomer body only in the radial direction. Since elastomeric body can generally absorb only very low tensile stresses, the bearing described in the invention is insofar hardly suitable for the absorption of axial loads.
  • Object of the present invention is therefore to develop a wishbone of the generic type so that the stresses occurring in particular in commercial vehicles can be absorbed to an increased extent by the central support of the wishbone for the connected thereto axis.
  • This object is achieved by the features of claim 1. As a result of this embodiment according to the invention, the elastomer body encompassing in particular the spherical surface of the pivot axis can be prestressed not only in the radial direction but also in the axial direction. This bias is crucial for the stiffness of the elastomeric body in the axial direction, wherein the amount of stiffness is proportional to the absorption capacity for axial forces occurring.
  • A further advantage of the invention is the fact that by the possibility of axial prestressing an adjustment of the rubber-metal bearing can be made to different requirements, whereas in conventional constructions known from the prior art, the rubber compound of the elastomeric body used for different stiffnesses optionally changed must become.
  • Preferably, the pressure rings are fixedly connected to the elastomeric body, said solid compound e.g. can be formed by vulcanization / scorching. The biasing in the axial direction via the pressure rings.
  • The Spannschraubverbindungen represent a structurally simple and cost-effective way to bias the pressure rings by screwing the handlebar arms in the region of the jointly formed joint housing with the necessary forces.
  • Sufficient clamping forces are provided in this case, for example, by three or more coaxially arranged around the central recess for the rubber-metal bearing Spannschraubverbindungen.
  • In order, in particular, to reduce the shear forces occurring in the region of the central joint housing connection in particular in the case of very high torsions of the two link arms and not overload the clamping screw connections located there, it has moreover been found advantageous to arrange at least one of the Spannschraubverbindungen with a through hole associated therewith to provide the clamping screw encompassing shear sleeve.
  • But it can also be arranged Spannschubverbindungen with within the through holes, the clamping screws encompassing shear sleeves.
  • In the following an embodiment of the subject invention will be explained in more detail with reference to the accompanying drawings.
  • It shows:
  • FIG. 1
    a plan view of a triangular link according to the invention and
    FIG. 2
    a sectional view of the detail B off FIG. 1 in the region of the joint housing formed jointly by the two link arms.
  • The denoted in its entirety by 1 in the FIG. 1 illustrated wishbone has two mirror-symmetrical to each other arranged link arms 2 and 3. Each link arm has a cranked end portion 4 and 5, which together form a joint housing 6. Due to the offset of the end regions 4 and 5 and in this area abutting contact surfaces of the control arms 2 and 3 results for the entire wishbone a substantially V-shaped as seen from the ground plan with two end portions 7 and 8, which is the attachment of the wishbone. 1 serve on body side not shown here in detail. The attachment of the wishbone 1 is here performed by means of rubber-metal bearings 9 and 10 articulated. In the joint housing 6 formed by the two control arms 2 and 3 is also a rubber-metal bearing 11 is added, which produces a hinged connection to a fixed thereto - not shown here - Nutzkraftfahrzeugachse.
  • The joint housing 6 with the therein rubber-metal bearing 11 is in the FIG. 2 shown in more detail in its specific embodiment. The rubber-metal bearing 11 includes a pivot axis 12 with a symmetrically arranged to the pivot axis ends ball portion 13. The ball portion 13 is surrounded by a one- or multi-part elastomer body 14, which interposition of a sleeve 15 in a recess 16 of the end portions of the control arms. 2 and 3 formed joint housing 6 is arranged. At the axial outer sides of the elastomer body 14, two pressure rings 17 and 18 are vulcanized. The pressure rings 17 and 18 have a substantially parallel to the central longitudinal axis 19 of the pivot axis 12 arranged flange portion 20 and a right angles to the outwardly projecting flange portion 21. At the elastomeric body 14 facing away from the outside of the flange portion 21 abuts a stop surface 22 of the joint housing 6 at this.
  • Like from the FIG. 2 In addition, it will be apparent that the two link arms 2 and 3 of the triangular link 1 are connected to each other via a tensioning device consisting of a plurality of Spannschraubverbindungen 23. At least one Spannschraubverbindung consists of a clamping screw screwed thereto nut and a clamping screw encompassing shear sleeve 24. The at least one Spannschraubverbindung 23 is arranged with the clamping screw encompassing shear sleeve 24 within a through bore 25 of the joint housing 6. The screwing together of Spannschraubverbindungen 23 causes the loosely inserted into the recess 16 rubber-metal bearing 9 is determined both in the radial direction by the sleeve 15 and in the axial direction by the pressure rings 17 and 18, wherein simultaneously applied to the elastomer body 14 with compressive forces is, whereby a bias of the component is brought about and as a result the rigidity of the elastomeric body 14 is increased, so that after completion of the assembly by a movement of the pivot axis 12 caused compressive forces on the elastomeric body 14 can be easily absorbed. It should be noted that the elastomeric body 14 is fixed to the pivot axis 12 and the pressure rings 17, 18 by means of a Vulkanisierprozesses, the connection between the elastomer body 14 and sleeve 15 is only due to corresponding frictional forces.
  • LIST OF REFERENCE NUMBERS
  • 1
    wishbone
    2
    control arm
    3
    control arm
    4
    end
    5
    end
    6
    joint housing
    7
    end
    8th
    end
    9
    Rubber-metal bearing
    10
    Rubber-metal bearing
    11
    Rubber-metal bearing
    12
    swivel axis
    13
    ball section
    14
    elastomer body
    15
    shell
    16
    recess
    17
    pressure ring
    18
    pressure ring
    19
    central longitudinal axis
    20
    flange
    21
    flange
    22
    stop surface
    23
    clamping bolt
    24
    shear sleeve
    25
    Through Hole

Claims (1)

  1. Wishbone (1) for the axle suspension of motor vehicles for connecting a vehicle axle in an articulated manner to a vehicle frame comprising two control arms (2, 3), which are connected to one another in a joint housing (6) formed jointly by the control arms (2, 3) for a rubber-metal bearing (11) for fastening the wishbone (1) to the vehicle axle, wherein the rubber-metal bearing (11) comprises a swivelling axle (12) provided with a spherical surface as well as an elastomer body (14), which surrounds the swivelling axle (12) at least in the region of the spherical surface and is accommodated in a recess (16) situated inside the joint housing (6), wherein inside the recess (16) of the joint housing (6) there are disposed on the axially outer sides of the elastomer body (14) two press-on rings (17, 18), which are movable towards one another by means of a clamping apparatus with the agency of stop faces (22) of the joint housing (6), which lie against the mutually remote outer sides of the press-on rings (17, 18), wherein the clamping apparatus comprises a plurality of clamping screw connections, which are disposed parallel to the swivelling axle (12) and accommodated in through-bores (25) of the joint housing (6), characterized in that at least one of the clamping screw connections (23) is provided with a shear sleeve (24), which is disposed inside the through-bore (25) associated with said clamping screw connection and surrounds the clamping screw.
EP03709607A 2002-05-02 2003-02-12 Wishbone Active EP1499510B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10219708 2002-05-02
DE10219708A DE10219708A1 (en) 2002-05-02 2002-05-02 wishbone
PCT/DE2003/000418 WO2003093039A1 (en) 2002-05-02 2003-02-12 Wishbone

Publications (3)

Publication Number Publication Date
EP1499510A1 EP1499510A1 (en) 2005-01-26
EP1499510B1 EP1499510B1 (en) 2005-12-28
EP1499510B2 true EP1499510B2 (en) 2009-10-14

Family

ID=29224998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03709607A Active EP1499510B2 (en) 2002-05-02 2003-02-12 Wishbone

Country Status (11)

Country Link
US (1) US6959935B2 (en)
EP (1) EP1499510B2 (en)
JP (1) JP4115448B2 (en)
CN (1) CN100346991C (en)
AT (1) AT314212T (en)
BR (1) BR0304551B1 (en)
DE (2) DE10219708A1 (en)
ES (1) ES2253663T5 (en)
MX (1) MXPA03011896A (en)
RU (1) RU2309855C2 (en)
WO (1) WO2003093039A1 (en)

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BR0304551B1 (en) 2012-06-26
CN1524042A (en) 2004-08-25
CN100346991C (en) 2007-11-07
EP1499510B1 (en) 2005-12-28
US20040155422A1 (en) 2004-08-12
DE50302067D1 (en) 2006-02-02
RU2004101405A (en) 2005-02-10
EP1499510A1 (en) 2005-01-26
RU2309855C2 (en) 2007-11-10
DE10219708A1 (en) 2003-11-13
MXPA03011896A (en) 2004-06-03
ES2253663T5 (en) 2010-01-27
BR0304551A (en) 2004-08-03
US6959935B2 (en) 2005-11-01
AT314212T (en) 2006-01-15
ES2253663T3 (en) 2006-06-01

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